Finding the Third Proportional to 55,710.28 and 86,300.44

Step by Step Solution

1. Step 1: Write the proportion equation
   55,710.28 : 86,300.44 = 86,300.44 : x
2. Step 2: Convert to fraction form
   55,710.28/86,300.44 = 86,300.44/x
3. Step 3: Cross multiply
   55,710.28x = 86,300.44 × 86,300.44
4. Step 4: Simplify right side
   55,710.28x = 7,447,765,512.69
5. Step 5: Solve for x
   x = 7,447,765,512.69/55,710.28
6. Step 6: Final answer
   x = 133,687.45